Navback after settings applied

app/src/main/java/com/hippo/ehviewer/ui/settings/UConfigScreen.kt

@@ -31,7 +31,7 @@ import eu.kanade.tachiyomi.util.lang.launchIO
 import okhttp3.Cookie
 import okhttp3.HttpUrl.Companion.toHttpUrl
 
-private val applyJs = "javascript:(function(){var apply = document.getElementById(\"apply\").children[0];apply.click();})();"
+private const val applyJs = "javascript:(function(){var apply = document.getElementById(\"apply\").children[0];apply.click();})();"
 
 @SuppressLint("SetJavaScriptEnabled")
 @Composable
@@ -49,7 +49,12 @@ fun UConfigScreen() {
                     }
                 },
                 actions = {
-                    IconButton(onClick = { webview.get()?.loadUrl(applyJs) }) {
+                    IconButton(
+                        onClick = {
+                            webview.get()?.loadUrl(applyJs)
+                            navController.popBackStack()
+                        },
+                    ) {
                         Icon(imageVector = Icons.Default.Check, contentDescription = null)
                     }
                 },